AMPLITUDE-MODULATION AND POWER-CONTROL OF A PULSE-PREIONIZED TRANSVERSE-FLOW TRANSVERSE-DISCHARGE CO2-LASER

Authors
CHOUDHARY P AGARWAL MS NATH AK
Citation
P. Choudhary et al., AMPLITUDE-MODULATION AND POWER-CONTROL OF A PULSE-PREIONIZED TRANSVERSE-FLOW TRANSVERSE-DISCHARGE CO2-LASER, IEEE journal of quantum electronics, 33(5), 1997, pp. 677-684
Citations number
16
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied
Journal title
IEEE journal of quantum electronics → ACNP
ISSN journal
00189197
Volume
33
Issue
5
Year of publication
1997
Pages
677 - 684
Database
ISI
SICI code
0018-9197(1997)33:5<677:AAPOAP>2.0.ZU;2-H
Abstract
This paper describes the results of an amplitude modulation experiment performed on a pulse-preionized transverse-flow transverse-discharge CO2 laser, The amplitude modulation of the laser power was achieved by pulsewidth modulation of the discharge current using a switched-mode power supply. The causes of growth of discharge instability observed d uring the experiment with long excitation pulses are explained. The po wer control of the laser using this technique has been studied and thi s method is compared with the conventional method where the discharge current level is varied to achieve the laser-power control.